Answer:
D
Explanation:
myosin heads form cross bridges and pull thin filaments causing them to slide.
the presence of acetocholene causes calcium to be released causing depolarization of the sarcoplasmic reticulum and changing its shape. the myofilaments together with actin allows the myosin to form cross bridges along the muscle fibers and releases ATP for movement of the muscle.
That would be the protein food group.
Answer:
D
Explanation: If they know the reason they can better help fitness level is also something they should know and it varies by age.
Answer:
Experimenting with the equipment until you figure it out
Explanation:
can u make me brainly